Why is commercial fishing a more important industry in Canada than its employment
numbers would suggest it should be?

the Canadian fishing industry exports over 75% of the products harvested and processed in Canada. Therfore, Fishing is a global industry, and of key importance to Canada.

about the Commercial,

It provides a large quantity of food to many countries around the world, but those who practice it as an industry must often pursue fish far into the ocean under adverse conditions.

go fo it!!